I tried to partition the HDD using GParted but it didn't work out. Maybe because I messed up. So after cancelling the whole process, I rebooted my laptop. When I tried booting through OS X, it did not ...

I have a Mac Mini configured just the way I like it with 10.10.2 installed. I need to deploy that to a bunch of other computers around campus. The usual process for me in the past has been to use an ...

I have had a 1TB Western Digital Ultra external hard drive for nearly year.
Out of nowhere it will not show in disk utility but it does show in system profiler. I have a Macbook pro mid 2012 running ...

I recently deleted a partition and have 60GB of free space. I would like for my main partition to use that, but whenever I go to resize it, I get the error "You can’t perform this resize unless it has ...

I only had 1 volume on my hard drive. I tried to shrink it with Disk Utility - thinking it would resize the disk and the other space would be available to create another disk with. I didn't add any ...

I am about to install a new 240GB OWC Mercury Electra 6G (6Gb/s) SSD into the main drive bay of my MacBook Pro, moving the original Apple-installed 120GB 3G (3Gb/s) SSD into the optical bay using an ...

I recently began working for a company that has an OS X Server with a PROMISE Pegasus Thunderbolt RAID (RAID 5) attached as a file server. Within my first couple of days, it became apparent that users ...

I have a MacBook Pro which goes straight to Disk Utility when I try to start it (it totally froze and I forced it off and on). And no luck in repairing the hard disk (Disk Utility can't repair…)
I am ...

I tried to make an 8 GB partition on my hard drive so I could make it into a bootable drive, like Recovery HD but without the need to redownload the OS, but for some reason Disk Utility wouldn't let ...

Time ago I split the hard drive (500gb) in two partitions (250 each), now I don't need them anymore, so I have first erased successfully one partition and now I have still the second one (Mac HD 2)
...

How is it that Disk Utility allows you to resize the partition that OS X is botted from live, while the OS is running? Can there be problems doing this? I would have thought that booting into recovery ...

I am trying to figure out why I have 2 Macintosh HD Drives Appearing in disk utility.
One of them i can mount and shows it as being a logical drive and the second one i can't mount but it says it has ...

Firstly - I know this has been answered, but I am hoping for a more broken down answer, as I am not quite so technically minded, but I can follow instructions!
So in summary I have tried to install ...

bash-3.2# diskutil appleraid add member disk3 disk8
Started RAID operation on disk8 LookingGlass
Unmounting disk
Repartitioning disk3 so it can be in a RAID set
Unmounting disk
Can't write the RAID ...

I have a late 2011 Macbook Pro and I had Mavericks, which ran just fine, but I upgraded to Yosemite after hearing some good reviews. I didn't back it up in time machine. It made my laptop extremely ...

I've always used my USB on this computer. The only issue i would have is that it wouldn't always appear on screen, but i would just eject it and put it back in and it would all be ok. Today for some ...

I wanted to install Windows on my 2011 Macbook Air running 10.8. I had approximately 40 GB of a 120 GB hard drive free and I set Bootcamp to create a 20 GB partition for Windows. Halfway through the ...

Just yesterday I finally got my hands on a MacBook Pro in which I was planning to install Ubuntu and Windows aside from OS X for studying purposes.
I was barely beginning by partitioning the disk, or ...

I purchased an iMac from a buddy and recently upgraded to Yosemite so I am learning as I go about Macs. However, I decided I wanted it to be quicker so I purchased an OWC SSD to install as a primary ...

Is there a Terminal command which will show me how many GB has been written to my SSD through the whole lifetime of the disk? I'm asking because I want to find out how many cycles have been done. SSD ...

Hi everyone I have encrypted a partition of an external hard drive from the mac desktop.
I pressed that key button then pressed memorable and it changed my entire password unknowingly.
I need help. ...

I have two CoreStorage volumes on disk, one is 200GB the other is 50GB. I want to make the 1st 125GB and the second one 125GB.
Currently I have been able to use the diskutil cs resizeStack command to ...

So, I have a Mac Mini with a 160GB drive (it's an old model but it's only for testing). It had 4 versions of OSX on it but one needed more space so I removed the oldest version (Lion) and want to keep ...

I bought a secondhand macbook pro (early 2011). It was running Yosemite, but I wanted to do a fresh install, as initially I didn't have the password.
I created a 2nd partition and installed a clean ...

I cannot resize the HD of a new Mac Mini. The Mac HD shows 700+ GB on one partition with Yosemite on it and another partition of 200+ GB named "Free Space" and I cannot figure out how it got there.
...

I have a Macbook Pro 15″ Early 2011.
Last year I changed the disk to put a new Samsung SSD (Evo).
Recently my computer was really slow. I rebooted on the recovery partition, and tested my disk with ...

I've seen a couple of questions on the exchange that are similar to the issues I am having. But I haven't been able to get things to work referencing those issues.
I am ultimately looking to install ...

So yesterday I managed to screw up my iMac 2012 (with Fusion Drive) by installing the Mac OS X 10.10.2 update... The installation stalled and when I tried to restore from an external drive using Time ...